Portable gas-lamp.



No. 679,06I. Patented Iuly 23, |901..

- G. MCGOVERN.

PORTABLE GAS LAMP.

(Application Bled Oct. 31. 1900.)

ATENT EETCE.

GEORGE MCGOVERN, OF RICHMOND, VIRGINIA.

PORTABLE GAS-LAN! P.

SPECIFICATION forming part of Letters Patent N o. 679,061, dated July 23, 1901.

Application filed October 311 1900.

T0 all whom it may con/cern:

Be it known that I, GEORGE MoGovERN, a citizen of the United States, residing at Richmond, in the county of I-Ienrico and State of Virginia, have invented certain new and useful Improvements in Portable Gas-Lamps; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in portable lamps for general use, and the object is to provide a lamp of this character that shall be simple in construction and absolutely safe in operation.

To these ends my invention consists in lamps adapted to receive a cartridge containing a compressed illuminating-gas.

My invention further consists in the construction, combination, and arrangement of the several elements comprising the lamp, as will be hereinafter more fully described, and particularly pointed out in the claims.

In the accompanying drawings the same reference characters indicate the same parts of the invention.

Figure l in the drawings is a vertical section of a lamp embodying my invention, and Fig. 2 is a modified form of the diaphragm inlet-passage.

The body of the lamp consists of two sections l and 2, the meeting edges of which are flanged and secured together by bolts 3 3, and 4 denotes a corrugated diaphragm secured between the sections and provided with a minute passage 5.

6 represents a valve-rod, which is adj ustably secured to said diaphragm by the nuts 8 8, and the lower end of said rod terminates in a valve 9, which is normally held open, as shown, but when pressure is applied to the under face of the diaphragm closes against the valve-seat 10.

12 represents a spider in the pedestal or standard 13, in which is mounted a puncturing-screw 14, and 15 represents the cartridge, which is hermetically sealed and contains a charge of compressed illuminating-gas. The

neck 16 of this cartridge is screw-threaded and engages the threaded orifice in the partition 17. 1S represents a rubber packing Serial No, 35,062. (No model.)

interposed between the shoulder on the cartridge and the partition to insure an air-tight connection at this point. The lower end of the cartridge terminates in a thumb-grip 19, by means of which the cartridge is manipulated.

20 denotes the burner, and 2l the stop-cock, both of which are of the usual construction.

The operation is as follows: The cartridge is first charged with any suitable illuminating-gas, acetylene being preferred, and it is then inserted in the pedestal and forced upward against the puncturing-point, which opens the seal in the mouth of the cartridge and permits the confined gas to escape past the open valve and through the orifice 5 in the diaphragm, and thence through the stopcock 2l to the burner.

Should the pressure of the gas below the diaphragm become greater than the pressure above, the diaphragm will rise under the increased pressure, carrying with it the rod 6, which closes the valve 9 and checks the inflow until the pressure is reduced to the normal standard.

In the accompanying drawingsIhave shown my invention in the best form now known to me; but various changes in the details may be made within the skill of a good mechanic Without departing from the spirit of my invention as set forth in the claims.

Having fully described myinvention, what I claim as-new, and desire to secure by Letters Patent of the United States, is-

1. In a lamp of the class described, a lamp body and burner, a hermetically-closed cart'ridge adapted to be inserted in the lamp- Ybody, said cartridge containing a charge of illuminating-gas, and means for puncturing the cartridge, substantially as and for the purpose set forth.

2. In a lamp of the class described,a burner, a lamp-body formed with a valved inlet, a diaphragm adapted to control said inlet, a hermetically-sealed cartridge containing a charge of illuminating-gas adapted to be in- A sorted in the lamp-body and means for puncturing said cartridge, substantially as and for the purpose set forth.

3. Ina lamp of the class described, a lamp body and burner, a cartridge containing a charge of illuminating-gas adapted to be in- IOO serie-d in the lamp-body, a Valved inlet to the l lamp-body, a diaphragm adapted to control said inlet, a spider provided with punoturing means whereby the cartridge is punctured, substantially as and for the purpose set forth.

4. In a lamp of the class described, alamp body and burner, a pedestal supporting the same, a chamberformed in said pedestal having a threaded orifice adapted to receive the screw-threaded neck of a hermetioally-sealed cartridge containing a charge of illuminatinggas, a valved inlet to the lamp-body, a diaphragm adapted to control said inlet, a spider arranged in the chamber in the pedestal provided with means whereby the cartridge is punctured, substantially as and for the purpose set forth.

In testimony whereof I have'herennto set my hand in presence of two subscribing witmesses.

GEORGE MCGOVERN.

Witnesses: i

HENRY J. ENNIs, GHAS. E. RIORDON. 

